I suppose you would need to have the digital book file downloaded on your own device, and use an app to play it that does not alter the file. Probably something open source that can be trusted.
I download PDFs and EPUB files of my books and then use an app to read them out loud. It's a computer voice, but not so bad, you get used to it. So I own my digital library and don't have to worry about getting rugged. That's why I don't buy toi many Google Play books or Amazon Kindle books or Audible books anymore.